Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 13141] New: TCP options type filed interpreted as IP options type field

[bugzilla-daemon@xxxxxxxxxxxxx]

Bug ID	13141
Summary	TCP options type filed interpreted as IP options type field
Product	Wireshark
Version	Git
Hardware	All
OS	All
Status	UNCONFIRMED
Severity	Normal
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	g.djavadyan@gmail.com

Created attachment 15070 [details]
TCP option type 19

Build Information:
Version 2.3.0 (v2.3.0rc0-1492-g1431b97)
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Dear Wireshark developers,

I've attached the BGP Keepalive message with TCP MD5 signature option. I
noticed that Wireshark interprets TCP option type field [1] as IP option type
field [2]. Also, for TCP option type 19 (MD5 signature) [3] length and value
bytes are not interpreted.

[1] https://tools.ietf.org/html/rfc793#section-3.1
[2] https://tools.ietf.org/html/rfc791#section-3.1
[3] https://tools.ietf.org/html/rfc2385


Garri

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